rerun_transaction · Ontraport MCP Server MCP: Risk & Policy

WHAT IT DOES

What rerun_transaction does on Ontraport MCP Server

AI agents use rerun_transaction to commit financial operations through Ontraport MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why rerun_transaction needs a policy

This tool directly attempts to charge a contact's payment method, constituting a financial transaction. Misuse could result in unauthorized charges, making it critical severity under the Financial category.

From the tool's definition Retry a previously declined or failed transaction. The charge is re-attempted against the contact

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rerun_transaction Approval-gated

Any call to rerun_transaction is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "rerun_transaction": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Ontraport MCP Server, so you can run agents against it safely.

FAQ

Questions about rerun_transaction

What does the rerun_transaction tool do? +

Retry a previously declined or failed transaction. The charge is re-attempted against the contact. It is categorised as a Financial tool in the Ontraport MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on rerun_transaction? +

Register the Ontraport MCP Server MCP server in PolicyLayer and add a rule for rerun_transaction: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Ontraport MCP Server. Nothing to install.

What risk level is rerun_transaction? +

rerun_transaction is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit rerun_transaction? +

Yes. Add a rate_limit block to the rerun_transaction rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block rerun_transaction completely? +

Set action: deny in the PolicyLayer policy for rerun_transaction. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides rerun_transaction? +

rerun_transaction is provided by the Ontraport MCP Server MCP server (landonray/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.